"Fighter Guide Map No. 1B, Darwin Area", March 1944. Produced for air defence purposes by the Royal Australian Air Force. The map includes many of the air fields which were targeted by Japanese aircraft.

In the first and deadliest attacks, 242 aircraft hit Darwin on the morning of 19 February 1942. Killing at least 235 people and causing immense damage, the attacks made hundreds of people homeless and resulted in the abandonment of Darwin as a major naval base. (See the main article: Bombing of Darwin.)

Although the main defence was provided by RAAF and Allied fighters, a number of Australian Army anti-aircraft batteries in northern Australia were also involved in dealing with the threat of Japanese air raids.[1]

The explosion of an oil storage tank, hit during the first Japanese air raid on Darwin. In the foreground is HMAS Deloraine, which escaped damage.

The bombing of Darwin on 19 February 1942 was both the first and the largest attack mounted by Japan against mainland Australia, when four Japanese aircraft carriers (Akagi, Kaga, Hiryū and Sōryū) launched a total of 188 aircraft from a position in the Timor Sea.[2] These 188 naval aircraft inflicted heavy damage on Darwin and sank eight ships. A raid conducted by 54 land-based bombers later the same day inflicted further damage on the town and RAAF Base Darwin and resulted in the destruction of 20 military aircraft. Allied casualties were 235 killed and between 300 and 400 wounded, the majority of whom were non-Australian Allied sailors. Only four Japanese aircraft were confirmed to have been destroyed by Darwin's defenders.[3]

On 3 March 1942, nine Japanese A6M3 Zerofightersattacked the town of Broome, in northern Western Australia. Although Broome was a small town, it had become a significant air base and route of escape for refugees and retreating military personnel, following the Japanese invasion of Java. During the attack, which consisted of strafing runs only by the Zeros, at least 88 Allied civilians and military personnel were killed and 24 aircraft were lost. As Broome was almost undefended, Japanese losses were light, with only a single Zero being shot down over Broome and another one failing to reach its base.[4]

Two Australian soldiers searching for fragments of a bomb dropped during the third raid on Townsville.

Japanese naval flying boats conducted four small air raids on the north Queensland towns of Townsville and Mossman in late July 1942. Townsville, which was an important military base, was raided by Japanese Kawanishi H8K1 "Emily" flying boats operating from Rabaul on three nights in late July 1942. On the night of 25/26 July, the town was attacked by two flying boats but did not suffer any damage as the six bombs dropped by these aircraft fell into the sea. Townsville was attacked for the second time in the early hours of 28 July when a single flying boat dropped eight bombs which landed in bushland outside the town. Six P-39 Airacobras unsuccessfully attempted to intercept the Japanese aircraft. The third raid on Townsville occurred in the early hours of 29 July when a single flying boat again attacked the town, dropping seven bombs into the sea and an eighth which fell on an agricultural research station at Oonoonba, damaging a coconut plantation. This aircraft was intercepted by four Airacobras and was damaged. The fourth raid on north Queensland occurred on the night of 31 July when a single flying boat dropped a bomb which exploded near a house outside of Mossman, injuring a child.[5]

(09:20) Broome, WA. Attack on Broome: a strafing raid by nine A6M3 Zeros. At least 88 people were killed and 24 Allied aircraft were destroyed. A Sikh pilot of the Royal Indian Air Force Flying Officer Manmohan Singh, in one of the RAF Catalina flying boats died. He was the first Indian casualty on Australian soil.

(~10:30) Carnot Bay, WA. PK-AFV (Pelikaan)—a Douglas DC-3 airliner owned by KLM—was shot down by Zeros returning from the attack on Broome. It crash-landed 50 mi (80 km) north of Broome. Four passengers were killed. Diamonds worth £150,000–300,000 were lost or stolen following the crash.

Wyndham, WA. Strafing attack by Zeroes. No casualties. Koolama, which is in port by this time (see above), sinks as an indirect result of the attack.